Exploration of the brain from its basal aspect

Close-up view of arteries entering anterior perforated substance

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Image #5-1
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Exploration of the brain from its basal aspect
Close-up view of arteries entering anterior perforated substance
The hypophysis and optic chiasm are retracted toward the pons. The right posterior communicating artery (17) is divided and the internal carotid artery displaced forward to demonstrate the recurrent branch of the anterior cerebral artery (artery of Heubner) and the perforating branches of the anterior choroidal artery.
1 . Orbital gyrus
2 . Middle cerebral artery
3 . Lateral striate branch of middle cerebral artery
4 . Entrance to insula
5 . Anterior perforated substance
6 . Choroidal artery (anterior)
7 . Amygdaloid nucleus
8 . Oculomotor nerve (III)
9 . Cerebral peduncle
10 . Choroid plexus lateral ventricle
11 . Hippocampus
12 . Olfactory tract
13 . Longitudinal fissure (cerebral)
14 . Straight gyrus
15 . Orbital branch of anterior cerebral artery
16 . Internal carotid artery
17 . Posterior communicating artery (divided)
18 . Anterior cerebral artery
19 . Recurrent artery of Heubner
20 . Optic chiasm
21 . Optic nerve (II)
22 . Optic tract
23 . Hypophysis
24 . Pons
25 . Basilar artery